Thanks, Ted! I just found out how to set it up. The following settings have proved to do it, basically: only use the sub class form. struts-config.xml: <struts-config> <!-- ========== Form Bean Definitions ========== --> <form-beans> <form-bean name="subForm" type="SubForm"/> </form-beans> <!-- ========== Action MXpping Definitions ============================== --> <action-mXppings> <action path="/preload" type="PreloadAction" name="subForm"></action> <action path="/super" type="SuperAction" name="subForm"></action> <action path="/sub" type="SubAction" name="subForm"></action> </action-mXppings> </struts-config> In the JSP (don't specify used form): <BODY> <html:form action="/super.do"> <html:hidden property="myField"/> <html:submit property="command" value="Super Action"/> </html:form> <html:form action='/sub.do'> <html:hidden property="myField"/> <html:submit property="command" value="Sub Action"/> </html:form> </body> Have fun, Holger -----Ursprüngliche Nachricht----- Von: Ted Husted [mailto:archive@jab.org] Gesendet: Mittwoch, 19. September 2001 14:55 An: [EMAIL PROTECTED] Betreff: Re: Unable to handle ActionForm class hierarchies? The preload action does not set anything for the subForm, and therefore the string is blank. SuperForm superForm = (SuperForm) form; String someValue = "some Value"; System.out.println("PreloadAction is setting myField to \"" + someValue + "\""); superForm.setMyField(someValue); return new ActionForward("/test.jsp"); superForm and subForm are separate objects, and don't share data. -- Ted Husted, Husted dot Com, Fairport NY USA. -- Custom Software ~ Technical Services. -- Tel +1 716 737-3463 -- http://www.husted.com/about/struts/ "Wiechert, Holger" wrote: > > I tried to use now all qualifications as I could (at least, that > I know) -- still the same result: > when using the sub class form, the hidden field could not > get retrieved. I shifted the classes (Forms and Actions) to > a package now (I think I read once something that > tomcat has problems with default package classes -- just in case). > Unfortunately, I had a hard time to post a war file. It took > hours until it came through all kinds of blockers. So I'll send the > source within a zip file this time. Sorry for the ones that want > to take the time to run it and now have the extra work. The struts.jar > is again not included. > > The updated jsp (test.jsp) that calls the SuperAction or the SubAction (with > the forms SuperForm, SubForm resp.) now is: > > <%@ page language="java" %> > <%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %> > <html:html locale="true"> > <head> > <title>Test</title> > <html:base/> > </HEAD> > <BODY> > <html:form action="/super.do" name="superForm" type="supertest.SuperForm"> > <html:hidden name="superForm" property="myField" name="superForm"/> > <html:submit property="command" value="Super Action"/> > </html:form> > <html:form action='/sub.do' name="subForm" type="supertest.SubForm"> > <html:hidden name="subForm" property="myField" name="subForm"/> > <html:submit property="command" value="Sub Action"/> > </html:form> > </body> > </html:html> > > You start the test using start.jsp (web.xml also defaults to this jsp). > > Unfortunately, I don't have the time to go through the struts code. > I'm some sort of "superbusy" here. > > Btw., Thanks to Helmut/Cobbie.Behrend: > Looks like, the things you suggested don't work too, see above. > > Regards, > Holger > > -----Ursprungliche Nachricht----- > Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] > Gesendet: Dienstag, 18. September 2001 19:00 > An: [EMAIL PROTECTED] > Betreff: Re: Unable to handle ActionForm class hierarchies? > > Have you tried specifying the name explicitly? As in: <html:hidden name > ="superForm" property="myField"/> > > I have experienced this same error when having more than one form in a > session with the same property's. The actionForm associated with a > particular action was not being set. After specifying the name explicitly > the desired property was set. > > cobbie > > > -----Ursprungliche Nachricht----- > Von: Wiechert, Holger > Gesendet: Dienstag, 18. September 2001 17:16 > An: User-Struts (E-Mail) > Betreff: Unable to handle ActionForm class hierarchies? > > I've got a problem when using class hierarchies for ActionForms. > There are two ActionForms: SuperForm and SubForm (as can be guessed, > SubForm inherits from SuperForm). Then there are two Actions, > SuperAction and SubAction, where SuperAction uses SuperForm > and SubAction uses SubForm. The JSP that calls (via POST) either > SuperAction or SubAction contains a hidden field in the form tag: > > test.jsp: > > <BODY> > <ht ml:form action="/super.do"> > <html:hidden property="myField"/> > <html:submit property="command" value="Super Action"/> > </html:form> > <html:form action='/sub.do'> > <html:hidden property="myField"/> > <html:submit property="command" value="Sub Action"/> > </html:form> > </body> > > The field "myField" is member of the SuperForm. > A PreloadAction initializes the myField field and then > forwards to start.jsp. > The thing is, when I call the SuperAction, the myField's > value can get retrieved and when I call SubAction, it reads > an empty string. For some reason, the myField will be set to > this empty string, before the request is forwarded to > SubAction. > I included a war file that demonstrates this. > So, is this a bug or am I doing something wrong here? > I desperately need this feature (and besides this, I'm really > short in time, unfortunately). > > Help greatly appreciated! > Thanks in advance, > Holger > > ------------------------------------------------------------------------ > Name: superforms.zip > superforms.zip Type: Zip Compressed Data (application/x-zip-compressed) > Encoding: base64